Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Comparison Study Between International Standard and Statistical Analysis on LED Package Life

국제표준과 통계적 분석을 통한 LED Package 수명 비교 연구

  • Park, Se Il (Department of Plasmabiodisplay, Kwangwoon University) ;
  • Kim, Gun So (Department of High Tech Medical devices, National Institute of Food and Drug Safety) ;
  • Kim, Chung Hyeok (Department of Plasmabiodisplay, Kwangwoon University)
  • 박세일 (광운대학교 대학원 플라즈마바이오디스플레이학과) ;
  • 김건소 (식품의약품안전평가원 첨단의료기기과) ;
  • 김충혁 (광운대학교 대학원 플라즈마바이오디스플레이학과)
  • Received : 2017.10.26
  • Accepted : 2017.11.30
  • Published : 2018.02.01
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Abstract

In an attempt to estimate the life projection of LED packages, IESNA published a paper regarding an LED package measurement test method in 2008, and a life projection technical document in 2011, to be used for LED life estimation. IESNA's publications regarding LED package measurement methods were functional, but they were not internationally standardized before 2017. In order to develop a standardized method, the International Standard chose to use the LM-80 as a measurement method for LED life projection in their publication in 2017. Many projection methods have been discussed by the IEC Technical Committee 34 working group, including the method using an exponential function, which reflects lumen degradation characteristics well. This study is designed to explore alternative LED package life estimation methods using an exponential function with statistical analysis, other than the one suggested by the International Standard.

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References

  1. Approved Method: Measuring Lumen Maintenance of LED Light Sources, IES LM-80-08 (2008).
  2. Projecting Long Term Lumen Maintenance of LED Light Sources, IES TM-21-11 (2014).
  3. S. L. Park and C. H. Kim, J. Korean Inst. IIIum. Electr. Install. Eng., 30, 13 (2016). [DOI: https://doi.org/10.5207/JIEIE.2016.30.11.013]
  4. Approved Method: Electrical & Photometric Measurements of High-Powered LEDs, IES LM-85-14 (2014).
  5. Ecodesign Requirements for Non-directional Household Lamps, EC 1194/2012 (2012).
  6. LED Packages - Long-Term Luminous Flux Maintenance Projection, IEC 63013 (2017).